After a fraught semester of Greek life conduct violations and one arrest, the University of Central Florida has placed Delta Zeta sorority and Zeta Beta Tau fraternity on probation, reports the Orlando Sentinel.

The last straw was alcohol misconduct at a social, but far more serious violations had transpired over the course of the semester. In 2013, UCF lifted a suspension on Greek activities under the impression that the students had learned their lesson: This appears not to be the case, as four frats and sororities had to be disciplined this year. Just a few weeks ago, UCF suspended their chapter of Chi Omega sorority for forcing two pledges to drink a bottle of rum and find their way home from the parking garage they'd been abandoned in.

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And in early April, ZBT frat brother Marlon Austin De La Cruz was arrested for sexually assaulting a Delta Zeta member in the back seat of a car. The woman told authorities that she was too drunk to stop the attack or call for her boyfriend, who was driving, to help. In May, De La Cruz was charged with sexual battery, a second-degree felony.

The probations of both Delta Zeta and Zeta Beta Tau will last until the spring semester of 2015, say UCF administrators, and all events held by either must be alcohol-free.